Graphical Kinematics goodness

Hi folks,

A few goodies related to the course:

First, here are the correct answers to the questions regarding the nine graphs on the third page of the handout.

Constant velocity: Graphs a, f, i
Non-constant velocity: Graphs b, c, d, e, g, h
Velocity changes direction: Graphs c, d
Non-constant acceleration: Graphs b, c, g

The only graphs that COULD describe the same motion are a, f, and i, but this would require that graph f show a negative velocity. Consequently none of the graphs could describe the same motion.

Here are the graphs that correspond with the descriptions on the second page of the handout:

1. Football:







2. Rolling Ball:







3. Elevator:






4. Bicyclist:






5. Roller skater:






Finally, check out the simulation site below and click on 'One Dimensional Constant Acceleration.' Play around with the settings and predict what the graphs should look like. Try the self test and see how you do.

http://higheredbcs.wiley.com/legacy/college/halliday/0471320005/simulations6e/index.htm?newwindow=true


Have a nice weekend!